/*
 * Copyright 2010-2025 Hyland Software, Inc. and its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.activiti.engine.impl.cmd;

import java.io.Serializable;
import org.activiti.engine.ActivitiIllegalArgumentException;
import org.activiti.engine.ActivitiObjectNotFoundException;
import org.activiti.engine.impl.interceptor.Command;
import org.activiti.engine.impl.interceptor.CommandContext;
import org.activiti.engine.impl.persistence.entity.ProcessDefinitionEntity;
import org.activiti.engine.repository.ProcessDefinition;

/**

 */
public class AddIdentityLinkForProcessDefinitionCmd implements Command<Void>, Serializable {

    private static final long serialVersionUID = 1L;

    protected String processDefinitionId;

    protected String userId;

    protected String groupId;

    public AddIdentityLinkForProcessDefinitionCmd(String processDefinitionId, String userId, String groupId) {
        validateParams(userId, groupId, processDefinitionId);
        this.processDefinitionId = processDefinitionId;
        this.userId = userId;
        this.groupId = groupId;
    }

    protected void validateParams(String userId, String groupId, String processDefinitionId) {
        if (processDefinitionId == null) {
            throw new ActivitiIllegalArgumentException("processDefinitionId is null");
        }

        if (userId == null && groupId == null) {
            throw new ActivitiIllegalArgumentException("userId and groupId cannot both be null");
        }
    }

    public Void execute(CommandContext commandContext) {
        ProcessDefinitionEntity processDefinition = commandContext
            .getProcessDefinitionEntityManager()
            .findById(processDefinitionId);

        if (processDefinition == null) {
            throw new ActivitiObjectNotFoundException(
                "Cannot find process definition with id " + processDefinitionId,
                ProcessDefinition.class
            );
        }

        executeInternal(commandContext, processDefinition);

        return null;
    }

    protected void executeInternal(CommandContext commandContext, ProcessDefinitionEntity processDefinition) {
        commandContext.getIdentityLinkEntityManager().addIdentityLink(processDefinition, userId, groupId);
    }
}
